I have a laptop, can I use Wifi and cable (Ethernet) networking at same time?

I have an intranet without connection to the Internet, and then I have WiFi with connection to the Internet.

Can I make a configuration that makes it possible to be connected to the Internet through WiFi and at the same time being connected to intranet through cable?

I'm on a laptop.

Solution 1:

You can plug both in at the same time and be connected to both, but you can only use the Internet from one of them. The computer will prefer the cable.

So if you only have Internet access via one of them then yes you can be connected to both networks. But if both are capable of providing Internet access, then Ubuntu will prefer the cable (Ethernet) network to access the Internet (and not use the Wifi network to access the Internet).

The upside of using two connections that provide Internet access, is that if one is disconnected, you will keep on using the Internet without being affected.

I have asked a similar question on the site before, that you might find useful.

Solution 2:

Yes. But at any particular time, the system will only actually be using one of them. I believe that in almost all cases, the ethernet connection is preferred over the wireless. There is probably some configuration change that could be made to prefer wireless, if that is what you wanted.

Solution 3:

No disrespect, but the question was hurt, badly. See, you don't need "Internet" to use your router, you can connect most wireless gadgets these days to a router to use other functions that do not need a connection to the Internet at all. So yes, he/she could be plugged in to the router with Internet access, and also connected via wireless to a different (perhaps more secure) router used in-house (maybe for file transfer or anything that does not need Internet access). So the answer is yes.